Combined signal and spring-jack.



No. 890,695. PATENTBD JUNEr16, 190a. J. L. McQUARRIE.

I GOMBINBDYS'IGNAL AND SPRING JAGK.

APPLICATION FILED MA'Y'B. 1906.

UNITED STATES PATENT." orricn.

JAMES L. McQUA-RRIE, OF OAK PARK, ILLINOIS, ASSIGNOR TO WESTERN. ELECTRIC COM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS COMBINED sterner. AND SPRING-JACK.

Ive-890595.

To all whom it may concern:

Be it known, that I, JAMES L. MCQUAR IE, citizen of the Unitefl States, residing at Oak Park, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in a Combined Signal and Spring- Jack, of which the following is a full,

clear, concise, and exact description.

My invention relates to, the provision of an 'annunciator drop with improved, simple and eflicient mechanism, operated in the closure of a connection switch, adapted to effect the restoration of the signal of the annunciator from its displayed position to its normal or concealed position.

In an embodiment of'my invention, I pro,

vide a signal adapted to operated or displayed by anelectromagnet, against a're storing force, such as gravity, a catch being arranged to maintain the signal in its posi tion of display.' A springjack is associated with the annunciator, and provided with a line spring adapted when flexed by the insertion of a plug, to operate said catch and release the signal, allowing it to return to its normal or concealed position.

I will describe my invention by reference to the accompanying drawing, wliicli illustrates the preferred embodiment thereof, reservingfor the appended claims a statement of the parts, improvements and combina- ;tions which I consider novel with me.

Figure 1 is a side elevation, with one'sid'e of the framework broken away, of a com bined annunciator and-springja-ck equipped- 'release the signal; Fig. 4 is a detail perspective view of the mounting for the lever ,or catch for locking the signal in its d splayed position; Fig. 5 is a front view of the annunciator and jack; and Fig. 6 is a detail per spective view of the catch lever.

' Similar letters of reference are used to designate like parts throughout the several views. y

The signal or target a is arranged to be operated by an electromagnet l1 and moved into a position of display against a restoring force Speclfieation of Letters Patent.

Application filed May 5, 1906. Serial No. 315,295.

Patented June 16, 1908..

pole piece I) of the magnet i), said arm carrying at its lower end a curved eccentric armature b in position to be attracted by the iiiag- .net pole to rock the arm against the restoring force of gravity and IDOXQ the target into a position of display before the window If n the face plate I) secured tothe arms of the return pole piece.

A catch is arranged to maintain the signal in its position'of display, said catch preferably comprising a lever (1' having 'an angular arm (1 pivotedin a mounting e secured to one of the arms of the U-shaped pole piece. The lever is arranged to normally lie iii-the path of the curved armature b", and 18' adapted to be forced back by'said armature in its attractive movement, and to move by its own weight when the armature passes,

to bring its free end under said armature and lock the same in its attracted, position with the signal dis )layed.

A springjac f is secured to the face plate 5 beneath the annunciator, and is provided with a line spring f adapted when flexed by a plug 9 inserted in the ack, as shown in Fig. 3, to'opera'te an angular foot (1 secured to the lever d, and move the lever d to release the armature, allowing saidarinature and signal to return bygravity to their normal positions, concealing the signal. .Said plug and springjack constitute a connection switch for uniting an operators plug circuit with a telephone line.

claim 1. The combination with an electroinagv net, of a rocking arm pivoted intermediate.-

its ends, a curved armature 'carried byone end of said arm in position to be attracted by said 'magnet to rock the arm, a signal I,

carried by the'op osite end of said arm and displayed when t e arm is rocked, a catch for holding said armature in its attracted position, a springjackyand a plug ada )ted when inserted in saidspringjack tore case said catch.

2. The combination with an electromag not, of a centrally pivoted rocking arm, av curved armature carried by one end: of said arm in position to be attracted by said inagnet to rock the arm, a signal carried by the opposite end of said arm and displayed w ien the arm is rocked, a catch adapted to 'hold In WILILGSS whereof, I hereunto subscribq the armatilre in ilts1 a'tiracted position 'to my nam'ethis 3rd day of May A'. D., 1906. 'mainta-ini 1e signa (is) ayed, as rin 'jack,' 1 T ,Q

avnd\a plug adapted' xv hen insel te li i1? said JAMES MCQLALIJE 5 jack to flex one ofthe springs of said jack Witnsses:

to-operate said catch and 1mm the anna JOHN G. ROBERTS, tur e and signal. RAY. T. A'LL wAY. 

